›› 2005, Vol. 26 ›› Issue (3): 347-350.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Test and study on soil water curve of unsaturated soil of Yellow River dyke

LI Yong-le1,2, LIU Han-dong2, LIU Hai-ning2, LIU Hui-qing2, LIU Cui-ran2   

  1. 1.Key Laboratory of Rock and Soil Mechanics, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; 2.North China Institute of Water Conservancy and Hydroelectric Power,Zhengzhou 450008,China
  • Received:2003-12-30 Online:2005-03-10 Published:2013-11-21

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Abstract: With the improved triaxial equipment for unsaturated soil, we tested and studied soil water characteristics of Yellow River dyke’s unsaturated soil under different confining pressures simulating the real condition exposed on unsaturated soil in engineering. And according to fest results, the curves of soil-water characteristics of unsaturated soil are obtained and the water-soil characteristics and their rules under additional load are discussed. At the same time, the function of fitted curves is gained. Based on the water-soil curves, the results are known that the matric suctions reduce with increasing the surrounding pressure and water content. To the same type soil, the matric suction changes small with change of water content when the water content is higher than 20 %, but it changes greatly when the water content is less than 20 %. The engineering characteristics become weak with increasing water contents.

Key words: Yellow River dyke, unsaturated soil, different confining pressures, soil water curve, test and study, fitting

CLC Number: 

  • TU 411.3
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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